﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Class1
    {
        public static int Student(int a , int b)
        {
             
            return a + b;
           
        }
        public static int aa(int a, int b) {
            return a * b;
        }
        public static int bb(int a,int b) {
            return a - b;
        }
    }
}
